Slurry extraction equipment for cast-in-situ bored pile construction

Abstract

The invention provides slurry extraction equipment for cast-in-situ bored pile construction, and belongs to the technical field of slurry treatment. According to the technical scheme, the device comprises a base, and an upper filtering mechanism, a lower filtering mechanism and a slurry pump are arranged on the base; the upper filtering mechanism comprises an upper circular ring, an upper annular groove is formed in the upper circular ring, a plurality of first filtering holes are formed in the bottom face of the inner side of the upper annular groove, and a slurry outlet of the slurry pump is located above the first filtering holes. The lower filtering mechanism comprises a lower circular ring which is arranged on the multiple sets of supports and located below the upper circular ring, the lower circular ring and the upper circular ring are coaxially arranged, a lower annular groove is formed in the lower circular ring, and multiple sets of second filtering holes are formed in the bottom face of the inner side of the lower annular groove. The device has the beneficial effects that the device is simple in structure, convenient to operate and exquisite in design, through the arrangement of the first annular groove and the second annular groove which are staggered up and down and the arrangement of different filter holes, further collection of residual water on particles and slurry composed of finer particles is achieved, and waste of water is avoided.

Description

[0001] This case is a divisional application. The original application is entitled: A mud extraction device for bored pile construction. The application date of the original application is: 2024-09-10, and the application number of the original application is: 202411261154.6 Technical Field The invention relates to the technical field of mud treatment, and in particular to mud extraction equipment used in bored pile construction. Background Art

[0002] At present, mud wall protection technology is usually used in the construction process of bored pile drilling. However, the treatment of waste mud has always been a difficult problem in construction. There are also a large amount of clay, sand and minerals in the waste mud, which can neither be discharged directly nor settle naturally. If it is not treated in time, it will not only affect the construction, but also cause environmental pollution.

[0003] Many treatment devices currently on the market, after filtering the mud through the filter net, will directly discharge the particles from the discharge port, and the mud composed of water and finer particles remaining on the particles will not be further processed, resulting in water waste. For example, the authorization document with announcement number CN207143953U discloses a mud extraction device for piling construction of bridges, which has a similar problem.

[0004] To this end, the present invention provides a mud extraction device for bored pile construction. Summary of the invention

[0005] The object of the present invention is to provide a mud extraction device for bored pile construction which is simple to operate and avoids waste of water resources.

[0006] The present invention is achieved by the following measures: A mud extraction device for bored pile construction, characterized in that it comprises a base, wherein the base is provided with an upper filter mechanism and a lower filter mechanism in sequence through a plurality of groups of brackets, and a mud pump cooperating with the upper filter mechanism is provided on one side of the plurality of groups of brackets of the base through a mounting frame, wherein the mud pump is used to extract mud and transport the mud to the upper filter mechanism through a pipeline for filtering; The upper filtering mechanism comprises an upper ring arranged on a plurality of groups of the brackets, the upper ring is provided with an upper annular groove, a plurality of groups of filter holes 1 are arranged on the inner bottom surface of the upper annular groove, and the slurry outlet of the mud pump is located above the plurality of groups of filter holes 1, that is, the extracted mud will first fall on the filter holes 1; The lower filtering mechanism includes a lower ring arranged on several groups of the brackets and below the upper ring, the lower ring is coaxially arranged with the upper ring, a lower annular groove is arranged on the lower ring, and several groups of filter holes 2 are arranged on the inner bottom surface of the lower annular groove, several groups of filter holes 2 are located directly below the filter hole 1 and the diameter of the filter hole 2 is smaller than the diameter of the filter hole 1, that is, the filter hole 1 can filter coarser particles in the mud, and then the mud passes through the filter hole 1 and falls into the filter hole 2 below, and the filter hole 2 can filter finer particles in the mud, and finally the mud passes through the filter hole 2 and enters the collection container arranged below.

[0007] The specific features of the present invention also include: The upper annular groove and the lower annular groove both include annular groove 1 and annular groove 2, the inner bottom surface of the annular groove 1 is lower than the inner bottom surface of the annular groove 2 and the arc length of the annular groove 1 is smaller than the arc length of the annular groove 2, and the two intersections of the annular groove 1 and the annular groove 2 are both provided with inclined transitions; A plurality of groups of filter holes 1 are arranged on the inner bottom surface of the annular groove 1 of the upper annular groove, and filter holes 2 are arranged on the inner bottom surfaces of the annular groove 1 and the upper and lower annular grooves 2 of the lower annular groove; An upper discharge port is provided on one side of the inner bottom surface of the second annular groove on the upper side, an upper discharge pipe is provided on the lower side of the upper discharge port, and the upper discharge pipe is connected to the coarse particle collection box; a lower discharge port is provided on one side of the inner bottom surface of the second annular groove on the lower side, a lower discharge pipe is provided on the lower side of the lower discharge port, and the lower discharge pipe is connected to the fine particle collection box; A rotating shaft is arranged on the base, and the rotating shaft is coaxially arranged with the upper circular ring and the lower circular ring. A plurality of push plate mechanisms are evenly arranged on the rotating shaft, which respectively cooperate with the upper annular groove and the lower annular groove. The push plate mechanism pushes from the other side away from the upper discharge port or the lower discharge port to push the corresponding coarse and fine particles to slide along the second annular groove. During the sliding process, the finer particles and water on the coarse and fine particles will fall through the second filter hole until they reach the upper discharge port or the lower discharge port. Then the coarse particles fall into the coarse particle collection box through the upper discharge port, and the fine particles fall into the fine particle collection box through the lower discharge port.

[0008] The push plate mechanism includes a long rod arranged on the rotating shaft, a circular tube is rotatably arranged on the lower side of the free end of the long rod, a circular rod is slidably arranged in the circular tube, a scraper is slidably matched with the upper annular groove or the lower annular groove on the lower side of the circular rod, the circular rod is arranged close to the inner side of the scraper to avoid the slurry outlet of the mud pump, and the lower side edge of the scraper is tightly attached to the inner bottom surface of the annular groove one or the annular groove two, so that the particles on the bottom surface can be pushed to the upper discharge port or the lower discharge port.

[0009] An annular plate 1 is arranged on the periphery of the circular tube near the lower end, an annular plate 2 is arranged on the periphery of the lower end of the circular rod, and a spring is arranged on the periphery of the circular rod, one end of the spring is fixed on the annular plate 1, and the other end of the spring is fixed on the annular plate 2. Through the action of the spring, the lower side surface of the scraper can be closely abutted against the inner bottom surface of the annular groove 1 or the annular groove 2, and the transition between the annular groove 1 and the annular groove 2 is achieved through the inclined surface.

[0010] A plurality of groups of matching and vertically arranged arc-shaped partition plates are arranged on the side surface of the scraper facing the rotation direction. The two outermost arc-shaped partition plates of the scraper are respectively attached to the inner side surfaces of the corresponding grooves. The particles are further separated by the arc-shaped partition plates, so that the moisture on the particles can fully fall down and be collected.

[0011] The lower side of the front end of the arc-shaped partition plate is provided with an arc surface, so that the transition between the annular groove 1 and the annular groove 2 can be smoothly achieved through the inclined surface; A groove is provided on the lower side surface of the arc-shaped partition plate which is in close contact with the annular groove one or the annular groove two, and a plurality of groups of filter holes three which penetrate the groove and have the same diameter as the filter hole two are provided on both side surfaces of the arc-shaped partition plate. Water and finer particles enter the groove through the filter hole three, and then fall through the filter hole two below for collection.

[0012] The scraper is provided with several groups of rotating shafts on the rear side away from the arc-shaped partition plate, and turbine blades are provided on the rotating shafts. During the rotation of the scraper, the mud in the annular groove 1 will drive the turbine blades to rotate, and the mud is stirred in the interaction, so that the final filtration is more complete.

[0013] The annular grooves 1 on the upper and lower sides are aligned and the slurry outlet of the mud pump is located above the annular groove 1 on the upper side, that is, the annular groove 1 on the upper side is located directly above the annular groove 1 on the lower side, so that the mud is filtered by the annular groove 1 on the upper side and then falls into the annular groove 2 for further filtration.

[0014] A receiving box is provided at the lower side of the annular groove 2 on the upper and lower sides, and a pipeline is provided on the receiving box to connect to the collecting container provided below the annular groove 1 on the lower side, so as to collect the filtered mud and prevent water waste.

[0015] A motor is arranged on the base, a gear 1 is arranged on the output shaft of the motor, and a gear 2 meshing with the gear 1 is arranged on the periphery of the rotating shaft accordingly. The rotating shaft is driven to rotate by the motor, thereby driving the driving mechanism to rotate.

[0016] Working principle: First, the mud pump transports the extracted mud to the upper filtering mechanism through the pipeline. The specifically filtered mud will fall into the annular groove 1 on the upper side and be filtered through the filter hole 1. The coarser particles will be retained in the annular groove 1. The mud filtered through the filter hole 1 will fall into the annular groove 1 below, and then be further filtered through the filter hole 2. The finer particles will be retained in the annular groove 1 below. The filtered mud will be collected by the corresponding collection container below. In order to further filter the moisture and finer particles remaining on the coarse and fine particles and realize the collection of water, the motor is started at the beginning of the above work to make the rotating shaft rotate, so that the pushing plate mechanism rotates along the upper annular groove and the lower annular groove. During the rotation, the scrapers on the upper and lower sides respectively start to rotate from the side of the upper and lower annular grooves one close to the upper discharge port and the lower discharge port, driving the coarse particles in the upper annular groove one and the fine particles in the lower annular groove one to rotate, and rotate into the annular groove two through the inclined surface, so that the coarse and fine particles are separated from the original mud and slide along the annular groove two. In the sliding process, the mud composed of moisture and finer particles remaining on the coarse and fine particles can be further filtered and processed. Finally, the coarse particles fall and are collected through the upper discharge port, and the fine particles fall and are collected through the lower discharge port. The final mud composed of moisture and finer particles passes through the filter hole two and enters the collection container arranged below for collection, thereby avoiding water waste.

[0017] The beneficial effects of the present invention are as follows: the device has a simple structure, is easy to operate, and is ingeniously designed. Through the setting of the upper and lower staggered ring grooves 1 and 2 and the setting of different filter holes, it achieves further collection of the water remaining on the particles and the mud composed of finer particles, thereby avoiding water waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the upper filtering mechanism in an embodiment of the present invention.

[0020] Figure 3 Schematic diagram of the structure of the push plate mechanism in an embodiment of the present invention.

[0021] Among them, the figure markings are: 1. base; 2. lower filter mechanism; 3. upper filter mechanism; 4. mud pump; 5. rotating shaft; 6. push plate mechanism; 7. upper discharge pipe; 8. lower discharge pipe; 9. upper annular groove; 10. annular groove two; 11. filter hole two; 12. inclined surface; 13. annular groove one; 14. filter hole one; 15. upper discharge port; 17. long rod; 18. round tube; 19. spring; 20. scraper; 21. rotating shaft; 22. turbine blade; 23. arc surface; 24. arc-shaped partition plate; 25. filter hole three; 26. groove. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0026] See also Figure 1-3A mud extraction device for bored pile construction comprises a base 1, wherein the base 1 is provided with an upper filter mechanism 3 and a lower filter mechanism 2 in sequence through a plurality of brackets, and a mud pump 4 cooperating with the upper filter mechanism 3 is provided on one side of the plurality of brackets of the base 1 through a mounting frame, wherein the mud pump 4 is used to extract mud and transport the mud to the upper filter mechanism 3 through a pipeline for filtering; The upper filtering mechanism 3 includes an upper ring arranged on a plurality of brackets, an upper annular groove 9 is arranged on the upper ring, a plurality of filter holes 14 are arranged on the inner bottom surface of the upper annular groove 9, and a slurry outlet of the mud pump 4 is located above the plurality of filter holes 14, that is, the extracted mud will first fall on the filter holes 14; The lower filtering mechanism 2 includes a lower circular ring which is arranged on a plurality of groups of brackets and is located below the upper circular ring. The lower circular ring is coaxially arranged with the upper circular ring. A lower annular groove is arranged on the lower circular ring. A plurality of groups of filter holes 11 are arranged on the inner bottom surface of the lower annular groove. The plurality of groups of filter holes 11 are located directly below the filter hole 14 and the diameter of the filter hole 11 is smaller than the diameter of the filter hole 14, that is, the filter hole 14 can filter the coarser particles in the mud, and then the mud passes through the filter hole 14 and falls into the filter hole 11 below, and the filter hole 11 can filter the finer particles in the mud, and finally the mud passes through the filter hole 11 and enters the collection container arranged below.

[0027] The upper annular groove 9 and the lower annular groove both include annular groove 13 and annular groove 2 10. The inner bottom surface of the annular groove 13 is lower than the inner bottom surface of the annular groove 2 10 and the arc length of the annular groove 13 is smaller than the arc length of the annular groove 2 10. The two intersections of the annular groove 13 and the annular groove 2 10 are both provided with a ramp 12 for transition; A plurality of filter holes 14 are arranged on the inner bottom surface of the annular groove 13 of the upper annular groove 9, and filter holes 2 11 are arranged on the inner bottom surfaces of the annular groove 13 of the lower annular groove and the upper and lower annular grooves 2 10; An upper discharge port 15 is provided on one side of the inner bottom surface of the upper ring groove 10, an upper discharge pipe 7 is provided on the lower side of the upper discharge port 15, and the upper discharge pipe 7 is connected to the coarse particle collection box; a lower discharge port is provided on one side of the inner bottom surface of the lower ring groove 10, a lower discharge pipe 8 is provided on the lower side of the lower discharge port, and the lower discharge pipe 8 is connected to the fine particle collection box; A rotating shaft 5 is provided on the base 1, and the rotating shaft 5 is coaxially arranged with the upper circular ring and the lower circular ring. A plurality of push plate mechanisms 6 are evenly arranged on the rotating shaft 5, which respectively cooperate with the upper annular groove 9 and the lower annular groove. The push plate mechanism 6 is used to push from the other side away from the upper discharge port 15 or the lower discharge port to push the corresponding coarse and fine particles to slide along the annular groove 10. During the sliding process, the finer particles and water on the coarse and fine particles will fall through the filter hole 11 until they reach the upper discharge port 15 or the lower discharge port. Then, the coarse particles fall into the coarse particle collection box through the upper discharge port 15, and the fine particles fall into the fine particle collection box through the lower discharge port.

[0028] The push plate mechanism 6 includes a long rod 17 arranged on the rotating shaft 5, a circular tube 18 is rotatably arranged on the lower side of the free end of the long rod 17, a round rod is slidably arranged in the circular tube 18, a scraper 20 that slides with the upper annular groove 9 or the lower annular groove is arranged on the lower side of the round rod, and the round rod is arranged close to the inner side of the scraper 20 to avoid the slurry outlet of the mud pump 4. The lower side edge of the scraper 20 is tightly attached to the inner bottom surface of the annular groove 13 or the annular groove 2 10, so that the particles on the bottom surface can be pushed to the upper discharge port 15 or the lower discharge port.

[0029] An annular plate 1 is arranged on the periphery of the circular tube 18 near the lower end, an annular plate 2 is arranged on the periphery of the lower end of the round rod, and a spring 19 is arranged on the periphery of the round rod. One end of the spring 19 is fixed on the annular plate 1, and the other end of the spring 19 is fixed on the annular plate 2. Through the action of the spring 19, the lower side surface of the scraper 20 can be closely abutted against the inner bottom surface of the annular groove 13 or the annular groove 2 10, and the transition between the annular groove 13 and the annular groove 2 10 is achieved through the inclined surface 12.

[0030] A plurality of groups of matched and vertically arranged arc-shaped partition plates 24 are arranged on the side surface of the scraper 20 facing the rotation direction. The two outermost arc-shaped partition plates 24 of the scraper 20 are respectively attached to the inner side surfaces of the corresponding grooves. The particles are further separated by the arc-shaped partition plates 24, so that the moisture on the particles can fully fall down and be collected.

[0031] The lower side of the front end of the arc-shaped partition plate 24 is provided with an arc surface 23, so that the transition between the annular groove 13 and the annular groove 2 10 can be smoothly achieved through the inclined surface 12; A groove 26 is provided on the lower side surface of the arc-shaped partition plate 24 which is in close contact with the annular groove 13 or the annular groove 2 10. A plurality of groups of filter holes 3 25 which penetrate the groove 26 and have the same diameter as the filter hole 2 11 are provided on both side surfaces of the arc-shaped partition plate 24. Water and finer particles enter the groove 26 through the filter holes 3 25, and then fall through the filter hole 2 11 below for collection.

[0032] A plurality of rotating shafts 21 are arranged on the rear side of the scraper 20 away from the arc-shaped partition plate 24, and turbine blades 22 are arranged on the rotating shafts 21. During the rotation of the scraper 20, the mud in the annular groove 13 will drive the turbine blades 22 to rotate, and the mud will be stirred in the interaction, so that the final filtration is more complete.

[0033] The upper and lower annular grooves 13 are aligned and the slurry outlet of the mud pump 4 is located above the upper annular groove 13, that is, the upper annular groove 13 is located directly above the lower annular groove 13, so that the mud is filtered by the upper annular groove 13 and then falls into the annular groove 2 10 for further filtration.

[0034] A receiving box is provided at the lower side of the upper and lower ring grooves 10, and a pipeline is provided on the receiving box to connect to the collecting container provided below the lower ring groove 13, so as to collect the filtered mud and prevent water waste.

[0035] A motor is arranged on the base 1, a gear 1 is arranged on the output shaft of the motor, and a gear 2 meshing with the gear 1 is arranged on the periphery of the corresponding rotating shaft 5. The rotating shaft 5 is driven to rotate by the motor, thereby driving the driving mechanism to rotate.

[0036] Working principle: First, the mud pump 4 transports the extracted mud to the upper filtering mechanism 3 through the pipeline. The specifically filtered mud will fall into the upper ring groove 13 and be filtered through the filter hole 14. The coarser particles will be retained in the ring groove 13. The mud filtered through the filter hole 14 will fall into the lower ring groove 13, and then be further filtered through the filter hole 2 11. The finer particles will be retained in the lower ring groove 13. The filtered mud will be collected by the corresponding collection container below. In order to further filter the moisture and finer particles remaining on the coarse and fine particles and realize the collection of water, the motor is started at the beginning of the above work to rotate the rotating shaft 5, so that the push plate mechanism 6 rotates along the upper annular groove 9 and the lower annular groove. During the rotation, the upper and lower scrapers 20 respectively start to rotate from the upper and lower annular grooves 13 close to the upper discharge port 15 and the lower discharge port, driving the coarse particles in the upper annular groove 13 and the fine particles in the lower annular groove 13 to rotate, and rotate to the annular groove 2 10 through the inclined surface 12, so that the coarse and fine particles are separated from the original mud and slide along the annular groove 2 10. In the sliding process, the coarse and fine particles can be further filtered to the mud composed of moisture and finer particles remaining on the coarse and fine particles. Finally, the coarse particles fall and are collected through the upper discharge port 15, and the fine particles fall and are collected through the lower discharge port. The final mud composed of moisture and finer particles passes through the filter hole 2 11 and enters the collection container arranged below for collection, thereby avoiding the waste of water.

[0037] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A mud extraction device for bored pile construction, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with an upper filtering mechanism (3) and a lower filtering mechanism (2) in sequence through a plurality of groups of brackets, and a mud pump (4) cooperating with the upper filtering mechanism (3) is provided on one side of the plurality of groups of brackets of the base (1) through a mounting frame; The upper filtering mechanism (3) comprises an upper circular ring arranged on a plurality of groups of the brackets, an upper circular ring is provided with an upper circular groove (9), a plurality of groups of filter holes (14) are provided on the inner bottom surface of the upper circular groove (9), and the slurry outlet of the mud pump (4) is located above the plurality of groups of filter holes (14); The lower filtering mechanism (2) comprises a lower circular ring arranged on a plurality of groups of the brackets and located below the upper circular ring, the lower circular ring being coaxially arranged with the upper circular ring, the lower circular ring being provided with a lower annular groove, a plurality of groups of filter holes (11) being provided on the inner bottom surface of the lower annular groove, the plurality of groups of filter holes (11) being located directly below the filter holes (14) and the diameter of the filter holes (11) being smaller than the diameter of the filter holes (14).

2. The mud extraction equipment for bored pile construction according to claim 1, characterized in that: The upper annular groove (9) and the lower annular groove both include annular groove 1 (13) and annular groove 2 (10), the inner bottom surface of the annular groove 1 (13) is lower than the inner bottom surface of the annular groove 2 (10) and the arc length of the annular groove 1 (13) is smaller than the arc length of the annular groove 2 (10), and the two intersections of the annular groove 1 (13) and the annular groove 2 (10) are both provided with inclined surfaces (12) for transition; A plurality of groups of filter holes 1 (14) are provided on the inner bottom surface of the annular groove 1 (13) of the upper annular groove (9), and filter holes 2 (11) are provided on the inner bottom surfaces of the annular groove 1 (13) of the lower annular groove and the upper and lower annular grooves 2 (10); An upper discharge port (15) is provided on one side of the inner bottom surface of the upper annular groove (10), an upper discharge pipe (7) is provided below the upper discharge port (15), and the upper discharge pipe (7) is connected to a coarse particle collection box; a lower discharge port is provided on one side of the inner bottom surface of the lower annular groove (10), a lower discharge pipe (8) is provided below the lower discharge port, and the lower discharge pipe (8) is connected to a fine particle collection box; The base (1) is provided with a rotating shaft (5), the rotating shaft (5) is coaxially arranged with the upper circular ring and the lower circular ring, and the rotating shaft (5) is evenly provided with a plurality of groups of push plate mechanisms (6) respectively cooperating with the upper annular groove (9) and the lower annular groove.

3. The mud extraction equipment for bored pile construction according to claim 2 is characterized in that: The push plate mechanism (6) includes a long bar (17) arranged on the rotating shaft (5), a circular tube (18) is rotatably arranged on the lower side of the free end of the long bar (17), a round rod is slidably arranged in the circular tube (18), and a scraper (20) is arranged on the lower side of the round rod to slide with the upper annular groove (9) or the lower annular groove, and the lower side edge of the scraper (20) is tightly attached to the inner bottom surface of the annular groove one (13) or the annular groove two (10).

4. The mud extraction equipment for bored pile construction according to claim 3 is characterized in that: A first annular plate is arranged on the periphery of the circular tube (18) near the lower end, a second annular plate is arranged on the periphery of the lower end of the circular rod, and a spring (19) is arranged on the periphery of the circular rod, one end of the spring (19) is fixed on the first annular plate, and the other end of the spring (19) is fixed on the second annular plate.

5. The mud extraction equipment for bored pile construction according to claim 4, characterized in that: A plurality of groups of arc-shaped partition plates (24) that match and are arranged vertically are arranged on the side surface of the scraper (20) facing the rotation direction.

6. The mud extraction equipment for bored pile construction according to claim 5, characterized in that: The lower side of the front end of the arc-shaped partition plate (24) is provided with an arc surface (23); A groove (26) is provided on the lower side surface of the arc-shaped partition plate (24) which is in close contact with the annular groove one (13) or the annular groove two (10), and a plurality of groups of filter holes three (25) which penetrate the groove (26) and have the same diameter as the filter hole two (11) are provided on both side surfaces of the arc-shaped partition plate (24).

7. The mud extraction equipment for bored pile construction according to claim 5, characterized in that: A plurality of groups of rotating shafts (21) are arranged on the rear side of the scraper (20) away from the arc-shaped dividing plate (24), and turbine blades (22) are arranged on the rotating shafts (21).

8. The mud extraction equipment for bored pile construction according to claim 2, characterized in that: The annular grooves (13) on the upper and lower sides are arranged in alignment, and the slurry outlet of the mud pump (4) is located above the annular groove (13) on the upper side.

9. The mud extraction equipment for bored pile construction according to claim 2, characterized in that: A receiving box is provided at the lower side of the annular groove 2 (10) on both the upper and lower sides, and a pipeline is provided on the receiving box to communicate with a collection container provided below the annular groove 1 (13) on the lower side.

10. The mud extraction equipment for bored pile construction according to claim 2, characterized in that: The base (1) is provided with a motor, the output shaft of the motor is provided with a gear 1, and the outer periphery of the corresponding rotating shaft (5) is provided with a gear 2 meshing with the gear 1.

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